CN101106281A - An intelligent digital battery - Google Patents

Abstract

The invention relates to an intelligent digit battery, comprising a battery and a current inductor, a voltage induced circuit, a temperature induced circuit as well as a voltage-stabilizer circuit connected with the battery and an intelligent control clip connected with the circuits. The intelligent control clip is connected with a memory; an amplifying circuit and a power-saving control circuit are provided between the current inductor and the temperature induced circuit; the amplifying circuit and the power-saving control circuit are connected with the intelligent control clip; the intelligent control clip is also connected with a data transceiver circuit. The intelligent digit battery in the invention has the advantages of the high reliability and accurate display of the battery actual capacity as well as the parameters of the current battery such as the voltage, current, temperature, using times, ex-works year/month, rated voltage, rated capacity, etc.

Description

A kind of intelligent digital battery

Technical field

The present invention relates to a kind of intelligent battery, being meant particularly a kind ofly can provide the real time capacity of battery and the intelligent digital battery of associated batteries information.

Background technology

Early stage conventional train all needs to add rolls a joint row trailer railway carriage or compartment, is placed with train-tail safty guard in this row trailer railway carriage or compartment, and this device is the safe operation of train, and reliable safety guarantee is provided, and guards on duty but this device need be equipped with special messenger personnel.Along with the development of technology, present train be the substitute is a kind of row tail communication equipment, and this equipment replaces the protector function in the row trailer railway carriage or compartment, does not need staff on duty.Because the high security requirement of train, the necessary non-stop run of this equipment, simultaneously self to carry power supply, power supply mostly uses row end cells such as NI-G, Ni-MH battery at present, this row end cell not carried charge shows or the not enough prompting function of electric weight, for the potential safety hazard that prevents that the battery short of electricity from causing, generally need regularly send someone to check, guarantee the high reliability of train operation.

Prior art shows some schemes that adopted for reliability and the realization electric weight that solves battery, as the patent No. is that 200420010203.0 patent documentation discloses a kind of rechargeable type video camera numeric type battery, is made up of digital battery unit, battery management unit, indicative control unit; Described digital battery unit is made of battery pack, battery management chip U1 and its peripheral voltage sampling circuit, current sampling circuit, temperature sampling circuit and memory that is electrically connected; Described battery management unit is made of microprocessor U4; Described display unit is made of dot matrix type LCD display module U5 and display screen; The input of described voltage sampling circuit, current sampling circuit is electrically connected with battery pack respectively, and its output electrically connects with the input interface of microprocessor U4 respectively; The output of described memory, temperature sampling circuit is electrically connected with the input interface of microprocessor U4 respectively; The output interface of described microprocessor U4 is electrically connected with the input interface of dot matrix type LCD display module U5; The output interface of LCD display module U5 is electrically connected with described display screen, and this scheme has improved the reliability of battery in the news gathering and editing process, but does not realize that whether the demonstration of the actual electric weight of battery and battery are to useful life.

The patent No. is that 200410042343.0 patent documentation discloses a kind of charging battery with electricity quantity display, comprise a battery container, this battery container surface is provided with a LCD, inside then is provided with an electricity accumulating unit, one electric weight testing circuit, one microprocessor and a LCD interface controller, wherein the electric weight testing circuit can be detected the electric weight of electricity accumulating unit, and testing result is sent to microprocessor is handled, this microprocessor can transmit an electric weight shows signal to the LCD interface controller according to testing result, make it control the electric weight of a liquid crystal display displays electricity accumulating unit, this scheme other electronic installations that need not to arrange in pairs or groups can show battery electric quantity, but its accuracy is not high.

Summary of the invention

The problem that the present invention need solve provides a kind of reliability height, shows that the battery actual capacity is accurate, can also show the access times of current cell voltage, electric current, temperature and battery, the days of dispatching from the factory, rated voltage, the isoparametric intelligent digital battery of rated capacity.

Designed a kind of intelligent digital battery according to the above-mentioned problem that needs to solve, comprise battery pack and the current inductor that connects with battery pack, voltage sense circuit, temperature sense circuit and voltage stabilizing circuit, the intelligent control chip that connects with foregoing circuit, described intelligent control chip connects with memory, between current inductor and temperature sense circuit, be provided with amplifying circuit and power-saving control circuit, described amplifying circuit and power-saving control circuit connect with intelligent control chip, and intelligent control chip also connects with the data transmit-receive circuit.

As preferred version of the present invention be: described amplifying circuit connects with the output of current inductor, send into intelligent control chip after the current signal that current inductor is produced amplifies and carry out analog-to-digital conversion, amplifying circuit comprises operational amplifier IC2A, IC2B, resistance R 5-R12,capacitor C 6, C7, C9-C11,2 pin of operational amplifier IC2A connect with the output of current inductor byresistance R 5,3 pin of IC2A connect with the input of current inductor byresistance R 6,8 pin of IC2A connect with power-saving control circuit, and 1 pin of IC2A connects with intelligent control chip withcapacitor C 6 by resistance R 11; 6 pin of operational amplifier IC2B connect with the input of current inductor byresistance R 7, and 5 pin of IC2B connect with end with the defeated of current inductor byresistance R 8, and 7 pin of IC2B connect with intelligent control chip withcapacitor C 7 byresistance R 12.

Described power-saving control circuit provides the power supply of power-saving control for temperature sense circuit and amplifying circuit, form by field effect transistor Q1,resistance R 15, R16,capacitor C 4, C12, the drain electrode of field effect transistor Q1 connects with the output of voltage stabilizing circuit, the grid of Q1 connects with intelligent control chip byresistance R 16, the source electrode of Q1 connects with the temperature sense circuit, and connects with 8 pin of operational amplifier IC2A bycapacitor C 4, C12.

Described data transmit-receive circuit is made up of resistance R 18-R22, triode Q2, diode D1, D2; the base stage of triode Q2 connects with 12 pin ofchip IC 3 byresistance R 18;resistance R 20 is serially connected with between the collector electrode of 13 pin ofchip IC 3 and Q2; resistance R 21 is parallel between the collector electrode and emitter of Q2; the collector electrode of Q2 connects with external equipment by port DATA, and wherein resistance R 22, diode D1, D2 provide port protection.

The present invention also provides a kind of battery capacity display packing of intelligent digital battery, and the execution in step of this method is: whether at first, it is enough to detect cell voltage, and voltage is not then worked less than set point; Voltage is then data such as sequence detection cell voltage, charging current, discharging current, temperature and record storage enough; Secondly, if having detected charging current shows that then battery charges, record charging data, adding up charges into electric weight, and according to the electric weight that charging current and time calculating charge into battery electric quantity is added up, and obtains the actual electric weight of battery; The 3rd, if do not detect charging current, detected discharging current and shown that then battery discharges, battery electric quantity tired out subtract, the electric weight that consumes according to the Time Calculation discharge of the size of discharging current and discharge tires out battery electric quantity and to subtract, and obtains the actual electric weight of battery.

When battery during by overcharge, according to the rated capacity data of battery, the adding up of limit capacity value, i.e. correction during Full Charge Capacity; Thoroughly put when electricity when detecting battery, automatically to battery capacity automatically clear 0.The data of the actual electric weight that obtains when actual electric weight of the battery that obtains during battery charge and battery discharge, by the data transmit-receive end, being sent to relevant device changes and shows that described data comprise charging current, charging interval, charging work number of times, discharging current, discharge time, voltage, temperature, capacity curve.

Battery major function of the present invention is the current capacity of real-time reflection battery, thereby uses the equipment of this battery can estimating battery can also provide the guarantee safe in utilization of equipment with how long.This battery can also provide parameter supply equipments such as data such as current cell voltage, electric current, temperature and the access times of battery, the days of dispatching from the factory, rated voltage, rated capacity to read.Advantage of the present invention is except providing the safe operation of capacity data support equipment for equipment, can also allow equipment read all battery informations, equipment can be done relevant processing according to these information, can how long can also adhere to by counting cell, whether need change or charge with the non-stop run of assurance equipment, and the Train End Equipment non-stop run could provide safeguard for safe driving.

Description of drawings

Accompanying drawing 1 is an intelligent digital battery functional-block diagram of the present invention;

Accompanyingdrawing 2 is circuit theory diagrams of Fig. 1;

Accompanyingdrawing 3 is workflow diagrams that the present invention shows battery electric quantity.

Embodiment

For the ease of those skilled in the art's understanding, operation principle of the present invention is described in further detail below in conjunction with specific embodiment and accompanying drawing:

As shown in Figure 1, a kind of intelligent digital battery, comprise battery pack and the current inductor that connects with battery pack, voltage sense circuit, temperature sense circuit and voltage stabilizing circuit, the intelligent control chip that connects with foregoing circuit, described intelligent control chip connects with memory, battery pack connects with power consumption equipment by output, between current inductor and temperature sense circuit, be provided with amplifying circuit and power-saving control circuit, described amplifying circuit and power-saving control circuit connect with intelligent control chip, intelligent control chip also connects with the data transmit-receive circuit, and the data transmit-receive circuit connects with equipment by data wire.

As shown in Figure 2, intelligent digital battery circuit theory diagrams of the present invention, battery pack BT adopts the battery of 7.2V/8000mAH, and intelligent control chip is made up ofchip IC 3, and the model of employing is F9222, and memory is made up of IC4, and the model of employing is 24C512.

Battery pack BT connects with switch, and holds to the equipment out-put supply by B+ and B-.Be connected with voltage stabilizing circuit and voltage sense circuit on the positive pole of battery pack, the voltage stabilizing circuit that voltage stabilizing circuit is made up of resistance R 1, capacitor C 1, C2, C3 and voltage stabilizing chip IC 1, it provides+the 5V D.C. regulated power supply, supplies with entire circuit.Voltage sense circuit offerschip IC 3 with the voltage signal of battery pack, is made up ofresistance R 3, R4,capacitor C 8, andresistance R 4 andcapacitor C 8 backs in parallel andresistance R 3 are serially connected with 16 pin of battery pack one end andchip IC 3.

The negative pole of battery pack BT connects with current inductor, and this current inductor is made up ofresistance R 2, and resistance is 0.047 Ω, is used for the charging current and the discharging current of induced cell.Current inductor connects with amplifying circuit, send into intelligent control chip after the current information that this amplifying circuit is sensed current inductor amplifies and carry out analog-to-digital conversion, amplifying circuit comprises operational amplifier IC2A, IC2B, resistance R 5-R12,capacitor C 6, C7, C9-C11,2 pin of operational amplifier IC2A connect with the output of current inductor byresistance R 5,3 pin of IC2A connect with the input of current inductor byresistance R 6,8 pin of IC2A connect with power-saving control circuit, and 1 pin of IC2A connects with intelligent control chip withcapacitor C 6 by resistance R 11; 6 pin of operational amplifier IC2B connect with the input of current inductor byresistance R 7,5 pin of IC2B connect with end with the defeated of current inductor byresistance R 8,7 pin of IC2B connect with intelligent control chip withcapacitor C 7 byresistance R 12, between 2 pin and 1 pin of resistance R 9, capacitor C 9 parallel connections and IC2A,resistance R 10,capacitor C 10 are parallel between 6 pin and 7 pin of IC2B.

Power-saving control circuit is made up of field effect transistor Q1,resistance R 15, R16,capacitor C 4, C12, the drain electrode of field effect transistor Q1 connects with the output of voltage stabilizing circuit, the grid of Q1 connects with intelligent control chip byresistance R 16, the source electrode of Q1 connects with the temperature sense circuit, and to connect with 8 pin of operational amplifier IC2A bycapacitor C 4, C12 be that IC2A and IC2B power.Whenchip IC 3 sleeps, the time is 1000 milliseconds (ms) when wherein sleeping, and 14 pin are put high level, and Q1 closes and cuts off power supply to save electric energy; Whenchip IC 3 sleep awakenings during to testing 14 pin put low level, Q1 opens, restore electricity, IC2A and IC2B induction by current loop works,chip IC 3 begins to detect parameters such as current/voltage temperature; 14 pin were put high level after detection finished, and Q1 closes, and cut off power supply with the saving electric energy, and operating time＜50 millisecond (ms),chip IC 3 enters sleep subsequently, so repeatedly; Q1 opens power supply and only accounts for 50 milliseconds of (ms)/1000 millisecond (ms), saves electric energy greatly.

The temperature sense circuit is made up ofresistance R 13, R14, thermistor RT andcapacitor C 5, thermistor RT andresistance R 14 serial connection backs connect with intelligent control chip,capacitor C 5 is parallel between the thermistor RT andresistance R 14 of serial connection, one end ofresistance R 13 connects with power-saving control circuit, and the R13 other end connects withresistance R 14 1 ends andcapacitor C 5 one ends.

12,13 pin ofchip IC 3 connect with the data transmit-receive circuit, and 14 pin of IC3 connect with power-saving control circuit, and 16 pin of IC3 connect with voltage sense circuit, and 17,18 pin of IC3 connect with amplifying circuit, and 19 pin of IC3 connect with the temperature sense circuit.Work in the gap working method, to save electric energy, its mode is: sleep awakening arrives the circulation of sleep again to testing, the time is 1000 milliseconds (ms) when wherein sleeping, operating time＜50 millisecond (ms), open power-saving control circuit during work simultaneously and power, therefore very power saving, average quiescent current is less than 0.2 milliampere (mA).

The data transmit-receive circuit is made up of resistance R 18-R22, triode Q2, diode D1, D2; the base stage of triode Q2 connects with 12 pin ofchip IC 3 byresistance R 18;resistance R 20 is serially connected with between the collector electrode of 13 pin ofchip IC 3 and Q2; resistance R 21 is parallel between the collector electrode and emitter of Q2; the collector electrode of Q2 connects with external equipment by port DATA, and wherein resistance R 22, diode D1, D2 provide port protection.

As shown in Figure 3, operation principle of the present invention is: press switch, battery is powered to power consumption equipment, and at this moment, intelligent control chip IC3 wakes up and starts working, and whether at first detect cell voltage enough, and voltage is not then worked less than 5V, changes sleep 1 second over to; Voltage is enough then opened power-saving control circuit, sequence detection voltage, charging current, discharging current, data such as temperature and record storage, this moment is if there is charging current then to show battery charge, record charging data, add up and charge into electric weight, data comprise charging current, time, charging work number of times, each complete charging process charging interval is the one action circulation greater than 15 minutes then whole processes, the work number of times adds 1, the voltage of record charging simultaneously, temperature, capacity curve, and calculate the electric weight that charges into according to charging current and time battery electric quantity is added up; Do not detected discharging current then show battery discharge if there is charging current, battery electric quantity is tired out subtracted, according to the size of discharging current, the electric weight that the discharge of the Time Calculation of discharge consumes tires out battery electric quantity and to subtract; Next Monitoring Data sending and receiving end signal requires transmitting-receiving related data and information according to interface command, and IC3 enters the low-power consumption sleep mode then, carries out power saving, and sleeping, IC3 wakes up once more after 1 second.This is external in sleep mode, and one has extraneous number to read signal, and IC3 can withdraw from sleep immediately, changes work over to.

Detection of dynamic is carried out in the charging of 3 pairs of batteries of chip IC, discharge, and the plus-minus that the electric weight that battery is charged into or the electric weight of releasing carry out electric weight calculates, and draw the real-time electric weight (capability value) of battery, and IC3 revises automatically to this capability value, promptly thoroughly to have put when electricity capacity clear automatically 0 when battery, and promptly when battery was carried out overcharge, IC3 was according to the rated capacity data of battery, adding up of limit capacity value, i.e. correction during Full Charge Capacity.

Chip IC 4 can storage battery relevant information, and can carry out data communication withchip IC 3 or equipment, the following information of thesechip IC 4 storages:

1) battery is numbered, is produced days;

2) battery operated number of times;

3) rated voltage, rated capacity;

4) charging of battery converts the efficient that electric weight stores to;

5) chemical analysis of battery;

6) 1000 historgraphic data recordings being recharged of battery;

7) the 64 times nearest charging curve that is recharged of battery, the explanation of curve are the voltage, temperature, electric weight of each charging to the curve of time, totally three.

The advantage of this battery is to use the equipment of this battery can read the various parameters and the data of battery at any time, crux is current electric quantity (capability value), how long equipment can also adhere to by counting cell like this, whether need change or charge with the non-stop run of assurance equipment, and the Train End Equipment non-stop run could provide safeguard for safe driving.

The application of the present invention in the row end cell only is a kind of application, and the meaning of its invention, economic benefit, social benefit are much larger than this.The present invention can also be applied to multiple occasion, even is applied to the occasion that all use battery.Application on for example various communication apparatus comprises intercom, mobile phone, forces station, civil radio etc., various automobile batteriess, battery peculiar to vessel, aerospace craft battery etc.

The operation principle of intelligent digital battery according to the present invention draws a kind of battery capacity display packing of intelligent digital battery, and the execution in step of this method is:

Whether at first, it is enough to detect cell voltage, and voltage is not then worked less than set point; Voltage is then data such as sequence detection cell voltage, charging current, discharging current, temperature and record storage enough;

Secondly, if having detected charging current shows that then battery charges, record charging data, adding up charges into electric weight, and according to the electric weight that charging current and time calculating charge into battery electric quantity is added up, and obtains the actual electric weight of battery;

The 3rd, if do not detect charging current, detected discharging current and shown that then battery discharges, battery electric quantity tired out subtract, the electric weight that consumes according to the Time Calculation discharge of the size of discharging current and discharge tires out battery electric quantity and to subtract, and obtains the actual electric weight of battery.

When battery during by overcharge, according to the rated capacity data of battery, the adding up of limit capacity value, i.e. correction during Full Charge Capacity; Thoroughly put when electricity when detecting battery, automatically to battery capacity automatically clear 0.

The data of the actual electric weight that obtains when actual electric weight of the battery that obtains during battery charge and battery discharge, by the data transmit-receive end, being sent to relevant device changes and shows that described data comprise charging current, charging interval, charging work number of times, discharging current, discharge time, voltage, temperature, capacity curve.

Claims (10)

1. intelligent digital battery, comprise battery pack and the current inductor that connects with battery pack, voltage sense circuit, temperature sense circuit and voltage stabilizing circuit, the intelligent control chip that connects with foregoing circuit, described intelligent control chip connects with memory, it is characterized in that: between current inductor and temperature sense circuit, be provided with amplifying circuit and power-saving control circuit, described amplifying circuit and power-saving control circuit connect with intelligent control chip, and intelligent control chip also connects with the data transmit-receive circuit.

2. intelligent digital battery according to claim 1, it is characterized in that: described amplifying circuit connects with the output of current inductor, send into intelligent control chip after the current signal that current inductor is produced amplifies and carry out analog-to-digital conversion, amplifying circuit comprises operational amplifier IC2A, IC2B, resistance R 5-R12, capacitor C 6, C7, C9-C11,2 pin of operational amplifier IC2A connect with the output of current inductor by resistance R 5,3 pin of IC2A connect with the input of current inductor by resistance R 6,8 pin of IC2A connect with power-saving control circuit, and 1 pin of IC2A connects with intelligent control chip with capacitor C 6 by resistance R 11; 6 pin of operational amplifier IC2B connect with the input of current inductor by resistance R 7, and 5 pin of IC2B connect with end with the defeated of current inductor by resistance R 8, and 7 pin of IC2B connect with intelligent control chip with capacitor C 7 by resistance R 12.

3. intelligent digital battery according to claim 2, it is characterized in that: described power-saving control circuit provides the power supply of power-saving control for temperature sense circuit and amplifying circuit, form by field effect transistor Q1, resistance R 15, R16, capacitor C 4, C12, the drain electrode of field effect transistor Q1 connects with the output of voltage stabilizing circuit, the grid of Q1 connects with intelligent control chip by resistance R 16, the source electrode of Q1 connects with the temperature sense circuit, and connects with 8 pin of operational amplifier IC2A by capacitor C 4, C12.

4. intelligent digital battery according to claim 3, it is characterized in that: described temperature sense circuit is made up of resistance R 13, R14, thermistor RT and capacitor C 5, thermistor RT and resistance R 14 serial connection backs connect with intelligent control chip, capacitor C 5 is parallel between the thermistor RT and resistance R 14 of serial connection, one end of resistance R 13 connects with power-saving control circuit, and the R13 other end connects with resistance R 14 1 ends and capacitor C 5 one ends.

5. according to the described intelligent digital battery of each claim among the claim 1-4, it is characterized in that: described intelligent control chip is made up of chip IC 3, the model that adopts is F9222,12,13 pin of chip IC 3 connect with the data transmit-receive circuit, 14 pin of IC3 connect with power-saving control circuit, 16 pin of IC3 connect with voltage sense circuit, and 17,18 pin of IC3 connect with amplifying circuit, and 19 pin of IC3 connect with the temperature sense circuit.

6. intelligent digital battery according to claim 5; it is characterized in that: described data transmit-receive circuit is made up of resistance R 18-R22, triode Q2, diode D1, D2; the base stage of triode Q2 connects with 12 pin of chip IC 3 by resistance R 18; resistance R 20 is serially connected with between the collector electrode of 13 pin of chip IC 3 and Q2; resistance R 21 is parallel between the collector electrode and emitter of Q2; the collector electrode of Q2 connects with external equipment by port DATA, and wherein resistance R 22, diode D1, D2 provide port protection.

7. intelligent digital battery according to claim 5, it is characterized in that: described voltage sense circuit offers chip IC 3 with the voltage signal of battery pack, be made up of resistance R 3, R4, capacitor C 8, resistance R 4 and capacitor C 8 backs in parallel and resistance R 3 are serially connected with 16 pin of battery pack one end and chip IC 3.

8. battery capacity display packing that is applied to claim 1 or 7 described intelligent digital batteries, the execution in step of this method is

Whether at first, it is enough to detect cell voltage, and voltage is not then worked less than set point; Voltage is then data such as sequence detection cell voltage, charging current, discharging current, temperature and record storage enough;

Secondly, if having detected charging current shows that then battery charges, record charging data, adding up charges into electric weight, and according to the electric weight that charging current and time calculating charge into battery electric quantity is added up, and obtains the actual capacity of battery;

The 3rd, if do not detect charging current, detected discharging current and shown that then battery discharges, battery electric quantity tired out subtract, the electric weight that consumes according to the Time Calculation discharge of the size of discharging current and discharge tires out battery electric quantity and to subtract, and obtains the actual capacity of battery.

9. battery capacity display packing according to claim 8 is characterized in that: when battery during by overcharge, according to the rated capacity data of battery, adding up of limit capacity value proofreaied and correct during Full Charge Capacity, stops to continue charging; Thoroughly put when electricity when detecting battery, automatically to battery capacity automatically clear 0.

10. battery capacity display packing according to claim 8, it is characterized in that: the data of the actual capacity that obtains when battery actual capacity that obtains during battery charge and battery discharge, by the data transmit-receive end, being sent to relevant device changes or shows that described data comprise charging current, charging interval, charging work number of times, discharging current, discharge time, voltage, temperature, capacity curve.

Images